首页|Acetone-d(6) mobility in confinement of D-ZSM-5 structure: A deuteron NMR study

Acetone-d(6) mobility in confinement of D-ZSM-5 structure: A deuteron NMR study

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  • NSTL
  • Elsevier
There are two typical ranges of temperature observed in mobility of molecules in confinement of eg. zeolite structure: translational mobility above T-S, and localized molecules below T-S. NMR spectra and relaxation for acetone-d(6) in D-ZSM-5 were obtained in a wide temperature range. NMR results were analyzed and compared with previous results for acetone-d6 in NaX and NaY zeolites. A lot of attention was dedicated to internal rotation of methyl groups, both above and below T-S. An evidence was given for existence of acetone dimers in confinement of D-ZSM-5 in the temperature range 267 K-151.5 K.

NMR relaxationDeuteron spectraMolecular mobilityAcetoneZeoliteACTIVATION-ENERGY DISTRIBUTIONSPIN-LATTICE-RELAXATIONWATER CONFINEMENTFAUJASITE CAGESZEOLITE CAGESMOLECULESSPECTRASITES

Birczynski, Artur、Szymocha, Agnieszka M.、glarz, Wladyslaw P. We、Lalowicz, Zdzislaw T.

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Pedag Univ Krakow

Agr Univ Krakow

H Niewodniczanski Inst Nucl Phys PAS

2022

10.1016/j.cplett.2021.139287

Chemical Physics Letters

Chemical Physics Letters

EISCI
ISSN：0009-2614
年,卷(期)：2022.788
  • 19